Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6928837 | Silica glass substrates and their selection | Masaki Takeuchi, Atsushi Watabe, Tetsushi Tsukamoto | 2005-08-16 |
| 6869732 | Glass substrate for photomasks and preparation method | Masaki Takeuchi | 2005-03-22 |
| 6855908 | Glass substrate and leveling thereof | Masaki Takeuchi | 2005-02-15 |